Patent US2445649A successfully refreshed from Google Patents.
US2445649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for finishing gears
Assignee: Gleason Works
•
Filing: 1945-11-06
•
Granted: 1948-07-20
•
Expires: 1965-11-06
Abstract
No abstract record available.
Inventors
- 👤 Lyman H Turner
- 👤 Oliver F Bauer
- 👤 Leonard C Michelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:55
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1237; B23F19/00; B23F19/02; B23F19/025; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/477
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1796484A
Cited
US1966172A
Cited
US2102659A
Cited
US2111170A
Cited
GB527830A
Cited
US2236256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |